body {
  background-color: rgb(90, 90, 90);
}
.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 50px;
}

.loader-wrap {
  color: #fff;
  border: 1px solid #fff;
  display: flex;
  padding: 0 2px;
  align-items: baseline;
}
.loader {
  height: 1em;
  line-height: 1;
  overflow: hidden;
}
.loader::after {
  content: '...\A..\A.';
  display: block;
  white-space: pre-wrap;
  animation: loading 2s infinite step-start both;
}
@keyframes loading {
  33% { transform: translateY(-2em); }
  66% { transform: translateY(-1em); }
}

